If you have an Apple TV, look out for the Littlstar app, which brings 360-degree videos to the platform for the first time. The company says that it has thousands of videos in its library, including ones from major brands like Discovery, Disney, Fusion, MLB, Mountain Dew, National Geographic, PBS and Red Bull.

You use the trackpad on the Siri remote to control your viewpoint. In a ballet video, for example, you can look around the theater as well as watch the performance, to get more of a sense of really being there …